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Definition of cosine noun from the Oxford Advanced Learner's Dictionary

cosine

noun

/ˈkəʊsaɪn/

/ˈkəʊsaɪn/

(abbreviation cos)

(mathematics)

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the ratio of the length of the side next to an acute angle in a right-angled triangle to the length of the longest side (= the hypotenuse) compare sine, tangentTopics Maths and measurementc2

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See cosine in the Oxford Advanced American DictionarySee cosine in the Oxford Learner's Dictionary of Academic English

Check pronunciation: cosine

Nearby words

noun

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B2

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